Elevatox



J. G. MBISNBB.

, ELEVATOB.

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ISNER.

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IIIIII l lllliilil llrl l Illlllll Patented J. G. MB

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ED STATES PATENT OFFICE.

JOHN G. MEIBNER, 0F CHICAGO, ILLINOIS.

ELEVATOB.

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Breciann 0f Imm Patent Patented Sept. 20, 191.0. Application tiled January 5, 1910. Serial No. 688,498.

To all whom. it may concern:

Be it known that I, JOHN a citizen of the United States, residing at Chica o, in the conntyof Cook and State of 5 Il inois, have invented a new and useful Improvement in Elevators, of which the fol` lowing is a ilcation.

My object is to provide im rovementsl in elevator apparatus, to the en of. affording barrier means at the floors opening into the elevator-shaft, which shall be operated by the movements of the elevator, under the control of an operator, to open and close the shaftto the floors, as desired. i

Referring to the accompanying drawings, Figure 1 is a horizontal-sectional view taken through--a1n elevator-shaft equipped with a cnr shown in plan, the apparatus illustra-ted embodying my invention, en d the section being taken at the line 1 on Fig. and viewed in the direction of the arrow; Fig. 2 is a section taken :it the line 2 on Fig. 1 and viewed in the direction of the arrow; Fig. 3 is a section taken at the line 3 on Fig. 1 und viewed in the direction of the arrow, showing the gate by dotted representation; and Fig. 4, a perspective view, in the nature of a dia-gram, of one end of the barrier-gate and a. co erating lock therefor.

he elevator-shaft,l a port-ion only of which is illustra-ted, is represented at 5, and is shown as rovided with an opening 6 op osite to a oor 7 of a building, it being un erstood that the shaft, in practice, reaches from the top to the bottom of the building, and that an opening 6 is located at each floor. The elevator-car, shown as of e construction suit-ablefoi' carrying freight, is represented at 8, this car being formed with a platform 9, upright side-members l0 and a cross-head 11, and operating at its members i0 on upright guides 12 carried by upri ht beu-ins 13 secured to the sides 14 of the aft. Any suitable means for raising l5 und lowering the car may be fprovided, but,

as these means form no art o my invention und are well understoo in the nrt, I have merely shown a holding cable 15 attached to the cross-head 11 of the cnr through the "0 medium of which the latter muy be raised or lowered.

Each opening 6 from the elevu-torshnfts to the floors is protected by barrier means in the form of a gate 16,. com rising, prefer- 5 ably, n. peir of horizontally isposed bnrs 17,

17 spaced apart and of "a,4 length reater than the width of the opening 6, an transverse bars 18 pivotally connected at their o posite ends to the bars 17 the upper one o the bars .17 bein pivotally connected at one end, as indica et 19, to cause the gate to extend across the opening 6 and form a removableburr-ier to the elevator-shaft when in one position, as represented in dotted lines in' Fig, 3, it being designed that this ate be swung on its pivot to raised position y the movement of the cai' when it is desired that the door protected thereby be opened to the car in the shaft, the means for accomplish ing this purposebei as follows: J ourna-led et one in the wa of the building and at its o posite end in one of the upriglits 13,

as in cated at 20 and 21, respectively, to extend into the elevator-shaft, is .a rock-shaft 22 hayin an offset portion 23 the outer end of this ft being connected with an end of the u one .of the hars 17 of the gate to ao t e ivotal connection of the latter ahoye refe to, whereby when the shaft 22 is rotated itwill cause the gate to be swung up or down, depending upon the direction in which the shaft is moved. The shaft 22 carries a lug 24 to which one end of a coiled alslpring 25, secured 'at its op osite end to a. w of the shaft 5, is attac ed. The arrangement of this s ring is such as to tend to cause the rockaft normally to oceupy a position in which the gate will be closed, and the oiset portion 23 is so dis d as to cause it to assume the upwardly inclined position representedin full lines in Fig. 3 when the gate is in normal position. Thus, when the rock-shaft is turned by swinging it to the right in Fig. 3, itwill be moved against the action of the spring 25 to open the gate. Joui'naled at its upper end in u bracket 26 on the cross-head 11 und at its lower end in the latform 9, is an upright striker-bar 27 fldrmed with an ofset Straight portion 28 and inclining end-portions 29, this bur being located on the cnr in a position in which it will engage at its portions 28 and 29 with the odset port-ion 23 of the rock-shaft to turn the lutter when the bar 27 is swung to the position indicated by dotted lines in Fig. 3. Thus, when the bur 27 is in the position referred to, und the cnr is moving either u or down in the shaft, it will engage with tie odset port-ion 23 of the rock-shaft thereby turning the Inti-.cr nud raising the te, the gate being held in raised positioigiauntil the car has moved sutiicicntly far to move the bar 27 out of engagement with the shaft 22, whereupon the latter, under the action of its sprm 25, will return to normal position for c osing the gate. The arrangement of parts described 1s such as to cause the te to be moved to o n condition during t e rise or descent of e car, as the case may be, Aand hold it in open position while the car 1s opposite the tloor protected thereli.

It is intended that. e operation of thc bar 27, to cause it to occupy o rative or in o erative position with relatlon to the rocks aft, be under the control of the elevatorcar operator, whereby he may operate the gates as described at an iioor desired to be opened to the shaft, an as a means for so controlling this actlon I prefer to provide those illustrated, a deseri tion of which is as follows: The u peren of the bar27 carries a link 30 to t e free end of which one end of a bar 31 is pivotally connected, as n dicated at 31", the other end of this bar being pivotally connected with the u er end of an operating lever 32, fulcrumedetween its ends, as indicated at 33, to the bracket 26, the lower end of this lever being iocated within the reach of the car o rator. Thus, by the lever on its cram the bar 27 may be turned in its bearings to move it into or out of operative position, de-

pending on the direction in which the lever swung A ring 32 is connected with the lever 32 an its supporting bracket, and tends to swing the lever at its lower end to the left in Fig. 2, whereby the bar 27 is antomati caily returned to normal inoperative position when the operator releases his hold on the lever 32.

It is preferred that means be rovided for maintaining the te locked 1n closed osition excepting att ose times when it is esired that it be raised as described, and as a means for accomplishing this purpose I provide the following described construction: The free end of the gate rests normally at the outer end of its upper bar 17 in a channeled stop 33 secured to the wall of the building adjacent to the opening in the shaft 5 to be protected, and extending normally under the action of a coiled spring 34, through the wall of the building and an opening 35 in the free end of the upper bar 17, is a rod 36 which serves to revent the gate from being raised while t rod ex tends through the opening 35. The rear end of this rod is ivotally connected with an arm 37 of a ll-crank lever 38 fulcrumed between its ends, as indicated at 39, to a bracket 40 secured to a sidewall of the shaft 5, the other arm 41 of'this' lever extending into the path of a striker-bar 42 ser cured to the cross-head 11 and platform 9 of the car. This striker-bar is provided with a straight offset portion 43 and deliected end-portions 44, the portion 43 of the bar 42 being longer than the portion 28 of the bar 27 and extending beyond the latter at its upper and lower ends. Thus, when the ba r 42 engages with the arm 41 of the lever 38 durin the movement of the car, it will jvith raw the rod 36 from enga ement at its outer end with the upper one o the gatebars17 and permit the ate to be raised, holdin the rod 36 in wlthdrawn position until t e bar 42 has passed beyond the arm 4l. It will be noted that the bar' 42 operstes to withdraw the rod 36 from the upper ate-bar 17 before the bar 27 envages with t e offset port-ion of the rock-shaft 22, when the bar 27 is in operative position, and thus the gate is free to be swung open; and, furthermore, that the rod 36 is held withdrawn u ntll the gate has been lowered to closed position.

It fill be readily understood from the foregolng that, so long as the lever 32 and bar 27 are in the position re resented in Fig. 2, movement of the car in tie shaft in either direction will not o erate the gate. Thus, when the operator dizsires to open the gate o posite the floor at which he wishes to stop e car, he throws the lever 32 to the right in Fig. 2 inst the action of the spring 32 before arriving at the floor et `Which he wishes to stop, thus swin g the bar 27 to the position represented lgildotted lines in Fig. 3 with the result of causing the bar 27 to ride againstthe oifsct portion of the shaft 22, turning the latter and raising the gate, it being understood that before the car 27 engages with the rock-shaft to turn it, the bar 42 strikes the arm 41 and withdraws the rod 36 from engagement with the upper gte-bar 17. As soon as the car, in moving yond the gate thus opened, moves suicently far to cause the bars 27 and i2 to be moved out of engagement with the rockshaft 22 and arm 41, respectively, the shaft 22 and rod 36 return to normal position un der the action of the sprin 25 and 311, respectively, thus closing and ocking the gate, andupon the release of the lever 32, by the operator, the bar 27 is automatically returned to normal inoperative position.

It will be understood from the foregoing that, where a number of floors of a buildingl communicate with the elevator shaft through openin like the one represented at 6, each of suc o enn s will be protected with a gate, and t at tie operating mechanism to be actuated by the elevator, as de scribed, will be duplicated at each door, thus permitting the operator, by manipulating the lever 32, to open the gate protecting any Hoor either during the ascent or desecut of the car.

l'Vhat I claim as new, and desire to secure by Letters Patent, is#

1. The combination of an elcvatoi'-sliaft,o car movable in said shaft, a movable barrier .for the opening in tlie shaft, a vertically dispos-eil striker-bar pivotecl at its upper and lower curls to the car to cause it to swing about a. vertical axis and rovided with a tieiiccted striker-portion, an means adapted to he engaged by said bar when the latter 1s in one osition for removing the barrier.

Tie combination of an elevator-shaft, a ear movable in said shaft, a rock-Shaft having an ofset-ixntion, a barrier opera-ted by said rock-shaft, and a verticallmdsposed striker-bar having its upper and ower ends deflected, said bar 'being pivoted at its upper and lower ends to the car to cause said bar to .saving about a vertical axis int-o and out of position for engaging with the offset-portion of said shaft.

2l. The combination of an elevator-Shaft, a rar movable in said shaft, a movable barrier for the opening iii the shaft, :i verticallydisposed striker-bar pivoted at. its upper and lower ends to the car to cause the bar to sivin" about a vertical axis and formed with a deflected striker-portion, means adapted to be engaged b v said bar when the latter is in one position for removing the barrier, and

lever iiicel'i'a-nisni connected with said bar, for the. purpose set. forth.

4. The combination of an elc-'alxn'-sliaft, a ont' iiiovahle in said shaft, n. vertically-disposed striker-bar pivotecl on said car, a. barrier, means cooperating ivitli the barrier and with said bar, when the latter is swung on its pi votal to acertain position, for removing the bari-ier, and means for operatin said bar comprising an o Jerating-lever fu crumed on said car, a. link .ved on said strikerbar,and a second link secured to the outer end of said first-named link and ivtli said operatinolever, t'oithe purpose set forth.

5. The. combination of an elevator-shaft, a ear movable in said shaft, a movable bnrrier for the o )eiiing in the shaft, a verticallydisposed stri :cr-bar pivoted at its upper and lower ends on said oar to cause it to swing about a vertical axis and provided with a detlccteil striker-portion, means adapted to be engaged b v said bar ivlien the latter .is in one position for removing said barrier, and means ope ating automatic-ally to turn said last-named means to inoperative position, for the purpose set forth.

JOHN G. MEISNER. In presence of- "il". B. DAviEs, R. A. .So-narran. 

